Home / 1,247,315.61-1,721,299.74-674,359.86

Finding the Fourth Proportional to 1,247,315.61, 1,721,299.74 and 674,359.86

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Solution

The fourth proportional to 1,247,315.61, 1,721,299.74 and 674,359.86 is: 930,618.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,315.61 : 1,721,299.74 = 674,359.86 : x
  2. Step 2: Convert to fraction form
    1,247,315.61/1,721,299.74 = 674,359.86/x
  3. Step 3: Cross multiply
    1,247,315.61x = 1,721,299.74 × 674,359.86
  4. Step 4: Simplify right side
    1,247,315.61x = 1,160,775,451,684.44
  5. Step 5: Solve for x
    x = 1,160,775,451,684.44/1,247,315.61
  6. Step 6: Final answer
    x = 930,618.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.